DIY SpeedBag Swivel and Wall Mount Attachment - YouTube
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DIY 2x4 punching bag mount - 1/4” 4in lag screws in wall, 1/4” 4in bolts (used hole bit to countersink the bol… | Gym room at home, Workout room home, Diy home gym
Building a speed bag platform (boxing) | Tacoma World
DIY Speed Bag Platform that Stows When Not Being Used
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Another DIY platform - Speed Bag Forum
Longarm's home made speed bag platform - Speed Bag Forum